Sash-fastener



(No Model.)

No. 254,232. Patentedfeb. 28, `1882.

4` Ntra STATES PATENT Frio.

THOMAS OBTON, OF CHICAGO, ILLINOIS.

SASH`FASTENER.

SPECIFICACLION forming part of Letters Patent No. 254,232, dated February 28, 1882.4

Application tiled October 13, 1881. (No model.) I

To all whom it may concern:

Be it known that I, THOMAS OarroN, of Ghicago, in the county of Cook and State ot' Illinois, have invented certain Anew and useful Improvements in Sash-Locks, ot' which the following is a specication.

My invention relates to the construction of a sash-lock for locking window-sash.

The device consists of a bolt iueased in a suitable bearing and provided with a spring which acts to thrust said bolt outward into the locked position. ,Said bolt is furnished with l a catch and trip device, more fully hereinafter explained, whereby it may be held in the withdrawn position and automatically released by the movement ot' the sash. I apply this de-d vice to the upper surfave ofthe lower windowsash, at one side, in such manner that the bolt, when ext-ended by the spring, willengage a socket or sockets in the side rail of the upper sash to lock the two sashes together. Said bolt is placed near enough the easement to cause the trip above mentioned to engagea lug upon the easement when said trip is set vinto position by the withdrawal ot' the bolt, so that when the lock is open and an effort is made to shut down the lower sash the trip will be operated and the bolt shot to place,locking the two sashes together at the moment the lower sash is fully closed.

In the accompanying drawings, which form .a part of this specification, Figure 1 is a top or plan view of the bolt and its casing. Fig.

2 is a side elevation of the saine. Fig. 3 is a longitudinal section. Fig. 4 is a cross-section, and Fig. 5 is an end view, showing the apparatus in place upon the sash.

Similar letters of reference indicatelike parts wherever used.

A is the bolt, which slides in the tubular case B. This case is anged, as'at b b, to aftord a vmeans of attaching it to the sash, which is accomplished by two light screws .passing through the perl'orations b b' into the wood of the lower sash, C.

D is a spiral spring within the casing, surrounding the bolt, and exerting its power to force said bolt outward into the position shown in Figs. l, 2, and 3. Attached to the rear end of the bolt is an arm, E, the outer end of which is bent, as at e. The case B is slotted at the rear end with the longitudinal slot F, to permit the passage of this arm when the bolt is withdrawn. A cross-slot, G, allows the arm to be swung either to the right or left into a horizontal position to lock the bolt when extended or set home by the spring. The rear part ot' the longitudinal slot is widened out, as at H, forming two rounded corners, as at h h. When the bolt is withdrawn it may be secured in the withdrawn position by swinging the arm either to the right or left behind one of these small rounded corners h.

C' is the upper sash,vand C2 the easement.

Upon the easement I tix alug, J, in such position that the arm E e will come in contact therewith when the sash is fully lowered, it' said arm be turned horizontally, as shown at Fig. 5. In the side bar ot' the upper sash are apertures or sockets K, to receive the bolt when the two sashes are locked together. By means ot' these sockets the sashes may be locked together by the bolt at any desired position.

Now, supposing the window to be raised and held in position by the bolt, it will be necessary in lowering the window to withdraw the bolt against the spring, and when withdrawn it may be secured in the withdrawn position by turning the arm E e behind one of the shoulders h. If turned away'from the casement, the bolt will not be operated by any movement of the sash; but if the arm be turned toward the adjacent easing, as shown in Fig. 5, then any attempt to lower the window will bring said arm in contact with the lug on said easement, which -will throw the arm up from behind the shoulder, tripping the bolt, and causing the window to lock itself when shut down.

By inserting the tripping-Ingen the window-easing I avoid cutting the sash in apply ing this device, and also avoid any percussion against the meeting-rail ot' the upper sash, which would jar the sash downward and thus prevent the bolt from engaging with its socket. The position of thelock at the side of the sash also permits the window to be securely locked when partially open by engagin the bolt with any of the upper sockets on t e side rail of the upper sash.

The superiority c'aimed for this lock over others consists in its simplicity, it being a sirn- IOO ple bolt; iu its strength, not depending on screws for security, screws only being needed to keep the bolt-plate from sliding; and in its security, as it cannot possibly be unbolted from the outside.

Of course the cross-slot G need not extend to both sides, as shown in the drawings, and the rounded shoulder h may be omitted from one side. The chief purpose of having the rounded shoulder at both sides of the crossslot is to make the device both right and left handed, so that it may be affixed to either side of the window.

I claim- In an automatic sash-lock, the tripping-lug J, placed on the side casing, and the trippingarm E e, in combination With each other and with the spring-bolt and its casing, slotted as described, und having the rounded shoulderor shoulders h, the said bolt and its casing placed on the top of the lower sash and the receiving-sockets on the side rail of the upper sash, substantially as specified.

THOMAS ORTON.

Witnesses:

H. M. MUNDAY, T. EVERETT BROWN. 

